diff --git a/projects/Demo/Demo.Android/Demo.Android.csproj b/projects/Demo/Demo.Android/Demo.Android.csproj
index 94c44925..410280b0 100644
--- a/projects/Demo/Demo.Android/Demo.Android.csproj
+++ b/projects/Demo/Demo.Android/Demo.Android.csproj
@@ -21,6 +21,10 @@
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
     <AndroidKeyStore>false</AndroidKeyStore>
+    <AndroidSigningKeyStore>..\keystore\demo.keystore</AndroidSigningKeyStore>
+    <AndroidSigningStorePass>123456</AndroidSigningStorePass>
+    <AndroidSigningKeyAlias>demo</AndroidSigningKeyAlias>
+    <AndroidSigningKeyPass>123456</AndroidSigningKeyPass>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -48,6 +52,8 @@
     <AotAssemblies>false</AotAssemblies>
     <EnableLLVM>false</EnableLLVM>
     <BundleAssemblies>false</BundleAssemblies>
+    <MandroidI18n />
+    <EnableProguard>false</EnableProguard>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Mono.Android" />
@@ -77,6 +83,8 @@
     <Compile Include="SplashActivity.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="keystore\demo.keyInfo" />
+    <None Include="keystore\demo.keystore" />
     <None Include="Resources\AboutResources.txt" />
     <None Include="Properties\AndroidManifest.xml" />
   </ItemGroup>
diff --git a/projects/Demo/Demo.Android/Properties/AndroidManifest.xml b/projects/Demo/Demo.Android/Properties/AndroidManifest.xml
index 129730cd..03eede47 100644
--- a/projects/Demo/Demo.Android/Properties/AndroidManifest.xml
+++ b/projects/Demo/Demo.Android/Properties/AndroidManifest.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.nbaxp.Demo" android:installLocation="auto">
-	<uses-sdk android:minSdkVersion="22" android:targetSdkVersion="28" />
+	<uses-sdk android:minSdkVersion="22" />
 	<uses-permission android:name="android.permission.CAMERA" />
 	<uses-permission android:name="android.permission.FLASHLIGHT" />
 	<uses-permission android:name="android.permission.INTERNET" />
-	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
-	<application android:label="Demo.Android"></application>
+	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+	<application android:label="Demo.Android" android:icon="@drawable/splash"></application>
 </manifest>
\ No newline at end of file
diff --git a/projects/Demo/Demo.Android/keystore/demo.keyInfo b/projects/Demo/Demo.Android/keystore/demo.keyInfo
new file mode 100644
index 00000000..6c22029c
--- /dev/null
+++ b/projects/Demo/Demo.Android/keystore/demo.keyInfo
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<KeyStore>
+  <CreationDate>2019-04-23T00:00:00</CreationDate>
+  <ValidityInfo>17:49 CST 2019 至 Thu Apr 15 20:17:49 CST 2049</ValidityInfo>
+</KeyStore>
\ No newline at end of file
diff --git a/projects/Demo/Demo.Android/keystore/demo.keystore b/projects/Demo/Demo.Android/keystore/demo.keystore
new file mode 100644
index 00000000..f34ea935
Binary files /dev/null and b/projects/Demo/Demo.Android/keystore/demo.keystore differ